Superabrasive L20GEB Owner's manual

Brand: Superabrasive

Model: L20GEB

Type: Owner's manual

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

LAVINA ELITE L20GEB

User Manual

Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

WARRANTY AND RETURNS

WARRANTY POLICY FOR LAVINA® GEB MACHINES

A warranty card must be submitted to Superabrasive within 30 days of purchase in order for the foregoing warranty to

apply.

You can either mail a hard copy of the warranty card or submit it electronically - see page 2.

Superabrasive warrants, from the time of delivery and receipt by the original customer, new and unused products sold

by Superabrasive or Superabrasive-appointed distributors or dealers. Goods shall be free from defects in materials and

workmanship. Superabrasive or a Superabrasive-appointed repair facility shall either replace or repair any defects in the

Goods resulting from faulty design, materials, or workmanship. Products repaired or replaced during the warranty period

shall be covered by the foregoing warranty for the remainder of the original warranty period, or ninety (90) days from date

of the repair or shipment of the replacement, whichever is longer. Spare parts for repair will be either new or equivalent

to new.

Warranty period shall be 2 years from the time of delivery and receipt by the original customer, or 600 operating hours

on the machine - whichever occurs first. Superabrasive will cover the shipping charges for the transportation of the

machine to Superabrasive (or an approved repair facility) and back to the customer (within the contiguous 48 United

States) in the event that the damage occurs and is reported within 200 operating hours. Shipping charges, if covered by

Superabrasive, must be agreed upon in advance and approved by Superabrasive. Thereafter, the customer will have to

cover the shipping charges to Superabrasive and back. Superabrasive will not warranty Goods after a period of 2 years

from the time of delivery and receipt by the original customer, or 600 operating hours on the machine - whichever occurs

first.

Superabrasive shall not be liable for any defects that are caused by circumstances that occur after the Goods have been

delivered and whilst the Goods are in the possession of the purchaser. Furthermore, the warranty does not include normal

wear and tear or deterioration. Wear parts are not warranted. Superabrasive is not liable for defects arising out of use of

non-OEM parts.

The Warranty is void if the purchaser has not followed the maintenance plan stipulated by the machine’s manual and

warranty card. The warranty is void if the purchaser repairs said Goods himself, or if repairs are conducted by a repair

facility that is not approved by Superabrasive. Superabrasive’s liability does not cover defects which are caused by faulty

maintenance, incorrect operation, faulty repair by the purchaser, or by alterations conducted without Superabrasive’s

prior written consent. The same applies to any alterations of the Goods or services performed by another party other

than Superabrasive, a Superabrasive-appointed distributor, or a Superabrasive-approved repair facility. The warranty is

not applicable on a defect that arises due to tools or parts that are not original to Superabrasive. Replaced defective parts

shall be placed at Superabrasive’s disposal and shall become property of Superabrasive. If such defective parts are

replaced

within the warranty period, the shipping charges will be covered by Superabrasive. In warranty complaint cases, when

no defects are found for which Superabrasive is liable, Superabrasive shall be entitled to compensation for the labor,

material cost, and shipping charges, incurred by Superabrasive as as a result of the complaint.

The warranty herein is non-transferable, and only applies to the original owner or purchaser of the machine.

RETURN POLICY FOR LAVINA® GEB MACHINES

The Lavina® ELITE machines may be returned, subject to the following terms:

In no case, a machine is to be returned to Superabrasive Inc. for credit or repair without prior authorization. Please contact

Superabrasive Inc. or your local distributor for an authorization and issuance of a return authorization number. This number

along with the serial number of the machine must be included on all packages and correspondence. Machines returned

without prior authorization will remain property of the sender and Superabrasive Inc. will not be responsible for them. No

machines will be credited after 90 days from the date of invoice.

All returns must be shipped freight prepaid. Returned machines may be exchanged for other equipment or parts of equal

dollar value. If machines are not exchanged, they are subject to a fifteen percent (15%) restocking fee.

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

Table of Contents

1. GENERAL INFORMATION ..................................................... 5

MANUFACTURER ........................................................................ 5

GENERAL DESCRIPTION ............................................................... 5

MACHINE CHARACTERISTICS ...................................................... 5

LAVINA® 20GEB MAIN DESIGN ................................................. 5

ENVIRONMENTAL CONDITIONS .................................................. 5

VACUUM CONNECTION .............................................................. 5

TECHNICAL DATA .................................................................. 6

2. SAFETY INSTRUCTIONS ............................................... 7

PREPARATION FOR WORK ......................................................... 7

PROTECTION DEVICES ................................................................ 7

ARREST FUNCTIONS ................................................................... 7

SAFE USE ..................................................................................... 7

FIRE SAFETY ................................................................................ 7

EMISSIONS .................................................................................. 7

HAZARD COMMUNICATION ...................................................... 7

LOCAL AGENCIES AND REGULATIONS ........................................ 8

AFTER WORK IS COMPLETED ..................................................... 9

THE WORK AREA ............................................................................. 9

PERSONAL PROTECTIVE EQUIPMENT (PPE) ............................... 9

TRANSPORTING CYLINDERS ..................................................... 10

3. HANDLING AND TRANSPORTATION .................................. 11

ADJUSTING THE HANDLE........................................................... 11

LIFTING THE MACHINE FROM WORKING TO TOOL

MOUNTING POSITION ......................................................... 12

LIFTING 12

STORAGE ................................................................................... 12

4. OPERATION ...................................................................... 13

PRELIMINARY CONTROLS ................................................................. 13

SA LPG CONTROLLER USER MANUAL ............................................ 13

SYSTEM COMPONENTS ................................................................... 13

OVERVIEW OF FEATURES ................................................................. 13

BUILT-IN FUEL LOCKOFF CONTROLLER ............................................... 13

EMISSIONS WARNINGS AND SHUTDOWN............................................ 13

BATTERY VOLTMETER ..................................................................... 13

ENGINE TACHOMETER .................................................................... 13

JOB TIMER.................................................................................... 13

SERVICE ALERTS ............................................................................ 14

MAIN MENU NAVIGATION AND USE ................................................. 14

MAIN MENU ................................................................................ 14

LED ALERTS & RESETTING SERVICE INTERVALS .................................... 15

SAFETY INFORMATION .................................................................... 15

WATER FLOW CONTROL SYSTEM .............................................. 16

ADJUSTING AND MOUNTING TOOLS ........................................ 17

VACUUM CONNECTION ............................................................ 17

CONTROL BOARD ...................................................................... 18

THE CONTROL BOARD .............................................................. 18

ELECTRONICS MODULE OF DIGITAL FUEL CONTROL SYSTEM . 19

STARTING THE MACHINE .......................................................... 20

OPERATING THE MACHINE ....................................................... 20

STOPPING THE MACHINE .......................................................... 20

5. TOOLS AND ACCESSORIES.................................................. 21

6. POPULAR TOOLS................................................................ 22

7. MAINTENANCE AND INSPECTION ..................................... 23

REMARK ..................................................................................23

MECHANICAL PARTS: ......................................................................23

CLEANING ..................................................................................23

CHECK HOURLY ..........................................................................23

CHECK DAILY ..............................................................................23

CHECK AND REPLACE AFTER THE FIRST 8 WORKING HOURS .....23

CHECK AND REPLACE AFTER THE FIRST 15 WORKING HOURS ...23

CHECK AND REPLACE EVERY 50 WORKING HOURS ....................24

CHECK AND REPLACE EVERY 200 WORKING HOURS ..................24

CHECK AND REPLACE EVERY 400 WORKING HOURS ..................24

VACUUM ...................................................................................24

WATER LEAKS ............................................................................24

MECHANICAL PARTS ..................................................................24

8. TROUBLESHOOTING .......................................................... 25

8.1 ENGINE ................................................................................25

8.2 CHECKING AND CHANGING OIL ...........................................26

8.5 DISMOUNTING/MOUNTING THE ENGINE............................29

8.6 REPLACING THE CLUTCH ......................................................30

8.7 DISMOUNTING TOOL HOLDER TO CHANGING V-RINGS AND

FELT-RINGS ................................................................................30

8.8 DISASSEMBLING AND MOUNTING TOOL HOLDER TO

CHANGE BUFFERS AND ELASTIC ELEMENT ................................31

8.9 CORRECTING DEFLECTION OF THE USED PLANETARY

CHAIN 32

8.10 MOUNTING NEW PLANETARY CHAIN ................................33

8.11 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND

PLANETARY TENSIONER.............................................................34

8.12 REPLACING PULLEY UNITS .................................................34

8.13 MOUNTING THE BELT ........................................................36

8.14 CHECKING THE TENSION OF THE BELT ...............................37

9. DISPOSAL .......................................................................... 37

10. MANUFACTURER’S CONTACTS ........................................ 37

12. SPARE PARTS ............................................................ 40

ASSEMBLY AND PARTS SPECIFICATIONS ..................................40

12.1. GENERAL PARTS ........................................................40

12.2 BUMPER .........................................................................40

12.4 CONTROL BOARD .......................................................41

12.5. CONTROL BOARD WITH THROTTLE CABLE ........41

12.6 CARRIAGE .....................................................................42

12.7 CARRIAGE 2 ..................................................................43

12.8 CARRIAGE 3 ..................................................................43

12.9 WHEEL ASSEMBLY ..........................................................44

12.10 EXTERNAL WATER VALVE ......................................44

12.11 WATER TANK ...................................................................44

12.12 REGULATOR SET ......................................................44

12.13 ENGINE BASE PARTS ...............................................45

12.14 GUARD ASSEMBLY .........................................................45

12.16 BOTTOM COVER PARTS 1 .......................................46

12.17 PLANETARY DRIVE PARTS .....................................47

12.18 TOOL HOLDER PARTS ....................................................48

12.19 BOTTOM COVER PARTS 2 .......................................48

12.20 PULLEY UNITS ............................................................49

12.21 KAWASAKI FS481V ENGINE PARTS ......................50

12.22 DRIVING PULLEY UNIT PARTS ...............................50

12.23 ELECTRICAL SCHEMES WITH KAWASAKI ENGINE ...........51

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

1. GENERAL INFORMATION

This owner’s manual is intended for the operator of the Lavina® GEB machine, the servicing technician as well as for anyone

involved with operating or servicing the machine. We recommend that you read the instructions very carefully and follow them

strictly. The manual includes information about assembling, using, handling, adjusting and maintaining your Lavina® GEB floor

grinding and polishing machine.

MANUFACTURER

Superabrasive was founded in 1987, as a manufacturer of high quality diamond tools for

the stone and concrete industry. Today, Superabrasive is one of the world’s leading

companies in the production of diamond tools and floor grinding machinery. At

Superabrasive, we strive to deliver the very best solutions to our customers, and enable

them to work more efficiently.

GENERAL DESCRIPTION

The Lavina® GEB machine is intended for grinding, polishing and buffing concrete, marble,

granite, limestone and terrazzo surfaces with diamond tools. Additionally, the machine

could be used for grinding wood floor surfaces.

The Lavina® GEB machine is a three-disc machine, which can be used wet or dry.

For best results, use only tools manufactured or recommended by Superabrasive and its

distributors.

The Lavina® GEB machine is manufactured and fitted for the

above-mentioned applications only! Every other use may possess risks to the

persons involved.

MACHINE CHARACTERISTICS

The Lavina® GEB machine is made of two main component sections:

LAVINA® 20GEB MAIN DESIGN

 The two main components are the carriage and main head.

The handle on the frame is adjustable in height and allows the operator to work in a

correct and safe posture.

 The LED lights (Fig.1.1;Fig.1.2) enables the operator to work in darker areas.

Existing lighting system does not replace adequate

overhead lighting.

 The propane tank is placed on a tank holder on the backside of the frame.

 The control panel (fig.1.3) is positioned on top of the frame and contains

switching devices, which ensure the proper functioning of the engine, LPG supply

turning on/off of the electromagnetic connector/clutch.

 The water tank is on the opposite side of the frame, so that the weight of the

water does not affect the operation of the machine. The frame weight, on the

other hand, is fully absorbed by the driving wheels.

 The Engine Kawasaki FS481V with electric clutch is mounted on the base plate and it is

driving the three heads with a belt system.

 The planetary motion derives from the main engine, driven by a simplex roller chain,

 The self‐leveling Guard is designed to have contact with the surface. Anytime, no matter the height of the tool

used.



“Quickchange” tool holder is designed to hold the tools with “Quickchange”connection.



The “Foam” tool holder is designed to hold tools with Velcro connection. It is mounted on each of the three grinding

heads with a key lock (butterfly). The Velcro makes changing of tools fast and easy

ENVIRONMENTAL CONDITIONS

The temperature range for operating the Lavina® GEB machine outdoors is between 41°F and 86°F or 5°C and 30°C. Never use

the Lavina® GEB machine during rain or snow when working outdoors. When working indoors, always operate the machine in

well‐ ventilated areas.

VACUUM CONNECTION

A connection for a vacuum dust extractor is located on the carriage. The Lavina® GEB machine does not include a vacuum dust

extractor. The customer must purchase the vacuum dust extractor separately. The vacuum dust extractor must be adapted for

floor grinders and have a minimum air displacement of 310m3/h with a negative vacuum of 21 kPa.

Figure 1.3

Figure 1.1

Figure 1.2

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

TECHNICAL DATA

VIBRATIONS

The vibrations of the machine are within the limits of directives and harmonized standards from the European Union when

the

Lavina® GEB is operated with the recommended tools and in normal conditions.

SONOROUS EMISSIONS

The sonorous emissions are within the limits of directives and harmonized standards from the European Union when the

Lavina® GEB is operated with the recommended tools and in normal conditions. However, as previously stated, the operator

must wear ear protectors.

LABEL DATA

The data on the label provides the correct Voltage and kW (needed for operational purposes);

Weight (needed for transportation purposes); production year and serial number (needed for maintenance purposes).

CUSTOMER SERVICE

For customer assistance and technical support call your local distributor or call Superabrasive Inc. at

1‐800‐987‐8403 or visit us at: www.superabrasive.com , where you can download a copy of this manual.

TECHNICAL DATA

Lavina® 20GEB

engine

Kawasaki FS481V

Capacity of engine

603cc

36.8cu.in

Power

13kW /3600 min

18 hp/3600 min

Tool holder rpm

610-1090 rpm

Direction of rotation

The heads have counter-clockwise / left rotation

Engine rpm

2000-3600 rpm

Working width

510 mm

20”

Tool holder diameter

3 x 225 mm

3 x 9”

Weight

292kg

645 lbs

Grinding pressure

Weights upward

126 kg

278 lbs

Grinding pressure

Weights downward

168 kg

371 lbs

Application

wet and dry

Vacuum hose port

Cam lock E250

or hose 2”

Cam lock E250

or hose 2”

Water tank capacity

20 l

5.2 gal

Water feed

Peripheral

Capacity Propane tank

9kg

20lbs

Machine LxWxH

1709x557x1195 mm

67.3”x21,9”x47”

Packing crate LxWxH

1390x710x1400 mm

54.7”x28”5x55.1”

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

2. SAFETY INSTRUCTIONS

RECOMMENDED USE

The LAVINA® 20GEB machine is designed and

manufactured to grind and polish concrete, terrazzo and

natural stone floors. It can be used for renovations as well

as for polishing.

The machine is designed for dry or wet use. When using it

dry, use a vacuum of appropriate size. For more

information, please refer to the chapter on handling the

vacuum connection.

PROHIBITED USE

The machine MUST NOT be used:

For applications different from the ones stated in the

General Description chapter.

 In environments which:

- Possess risks of explosion

-Possess high concentration of powders or oil

substances in the air

- Possess risks of fire

- Feature inclement conditions.

- Possess electromagnetic radiation.

- In nursing homes, hospitals, day‐care centers, etc

- In areas where loose tiles or other objects are

preventing proper use of the machine.

- In rooms without proper ventilation

- In nursing homes, hospitals, day-care centers, etc

- In areas where loose tiles or other objects are

preventing proper use of the machine.

- In rooms without proper ventilation

PREPARATION FOR WORK

Make sure that:

 The work area is closed so that no person unfamiliar

with operating the machine can enter the area

 The tool plate and tools are mounted on the

machine properly

 There are no missing parts of the machine

 The machine is in upright working position

 The protection devices are working properly.

PROTECTION DEVICES

 The machine is equipped with several protection

devices including the following:

 A protection skirt and a hood for protecting the

tool plates.

 These devices protect the operator and/or others

persons from potential injuries. Do not remove them. On

contrary, before using the machine, please ensure that

all

protection devices are mounted and function properly.

 The Envirogard Emissions Monitoring System

ARREST FUNCTIONS

 Functions of arresting of the machine are following:

- Switch to stop the engine

- Button to stop the grinding movement

- Close the propane tank

SAFE USE

The LAVINA® 20GEB is designed to reduce all risks

correlated with its use. However, it is not possible to fully

eliminate the risks of an accident with the machine.

Unskilled

or uninstructed operator may cause correlated residual

risks. Such risks are:

- Position Risks due to operator’s incorrect working

position

- Entanglement Risks due to wearing inappropriate

working clothes

- Training Risks due to lack of operational training

PROPANE SAFETY

 Propane is a flammable gas whose vapors are heavier

than air. As is the case with gasoline, propane can explode if

the proper cautions are not heeded. Propane is odorized

with an agent having a distinct odor that is recognizable at

very low concentrations. This helps in identifying leaks, even

when they are small.

 Awareness and basic safety precautions are required

when working with propane. As long as these precautions

are followed, risk is negligible. Ignorance, however, could

pose needless risk.

 The two greatest hazards with propane powered floor

care machines are:

- Carbon Monoxide Poisoning: This is the most

frequently reported incident associated with propane

powered floor care machines and is caused by excessive

exhaust emissions. The symptoms are headache,

dizziness and nausea. A major cause involves engines

with poor preventive maintenance practices, usually

those with dirty air filters and machines operated in

confined areas without adequate ventilation. Another

cause may be substandard, inexpensive machines with

no emissions control technology and improperly

set carburetion.

- Overfilled Fuel Cylinders: Nearly all fire

relatedincidents reported result from bringing a

cylinder into

a building without first checking for overfill. This action

is dangerous, unwise, and unnecessary.

FIRE SAFETY

 Be aware of the potential dangers of fire or

explosion when using propane, and take normal

fire‐safety precautions.

Fire: There is a possibility of fire from LPG vapor

leaking or venting from fuel cylinders or carburetion

equipment. Explosion: LPG vapor concentrated or

confined to a small, restricted space may explode or

ignite.

Propane may experience a BLEVE, a boiling liquid

expanding vapor explosion.

EMISSIONS

 All propane powered floor care machines produce

emissions. Most are harmless, but some are dangerous

and can be fatal. Carbon monoxide (CO) poses the

greatest risk, since

CO can be lethal within as little as 30 minutes exposure at

3,000 parts per million (ppm) concentration.

 Carbon monoxide is an invisible, odorless,

colorless gas created when fossil fuels (such as

gasoline, wood, coal, propane, oil and methane) burn

incompletely.

HAZARD COMMUNICATION

 A Material Safety Data Sheet for propane shall be

posted in all buildings where propane will be used.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

Because propane is odorized, it is easily detected at

levels of just a few parts per million, which is much

less than the exposure limit of 1000 parts per

million.

If you smell propane while operating a propane

floor care machine, do the following:

Stop the engine:

1. Pull the throttle to the stop position (if

present) or turn the key switch to the off

position.

2. Shut off the service valve on the propane cylinder.

3. Move the floor machine to a well‐ventilated area.

4. Remove the cylinder from the machine and

take it outside the building.

5. If the cylinder is leaking, contact a DOT

approved repair shop to determine the cause

of the leak and have the shop, not you, repair

it.

If a fire occurs while the machine is being

operated, do the following:

1. Stop the engine: pull the throttle to the stop

position

(if present) or turn the key switch to the off

position.

2. Shut off the service valve on the propane

cylinder if possible. Be careful not to be

burned.

3. Move the machine outside if possible. If not

possible,

move it to a well‐ventilated area away

from flammable materials.

4. Do not attempt to extinguish the flame

from a gas leak. If you do, the

gas will build up in the area and

could re‐ignite. Starve the fire by

shutting off the supply of gas.

5. HAVE THE MACHINE AND CYLINDER

INSPECTED BEFORE USING THEM

AGAIN

LOCAL AGENCIES AND REGULATIONS

 NFPA

Operating a propane powered

floor care machine requires compliance with certain safety

regulations. The National Fire Protection Agency (NFPA)

Standard for Storage and Handling of LP Gas is the

appropriate authority for safe propane use. A copy of this

publication is available through the NPFA in Quincy, MA (1‐

800‐334‐3555).

Among its regulations, NFPA #58 requires that all personnel

employed in the handling of propane gas be trained in its

proper handling and operating procedures. It also requires

them to carry a written certification from their employer or

training supervisor to attest to such training. Although this

is directed mainly to those who fill and transport liquid

propane gas, Onyx Environmental Solutions recommends

that operators of propane powered floor care machines in

public places be trained and certified as well.

With regard to operation of propane powered floor care

equipment, even though NFPA 58 8‐4.5 says “these

machines shall be permitted to be used in buildings

frequented by the public, including the times when such

buildings are occupied by the public,” Onyx Environmental

Solutions suggests usage when occupancy of a given work

area is minimal.

 CARB / EPA

The California Air Resource Board (CARB) and

Environmental Protection Agency (EPA) also set limits for

propane‐powered engines used outdoors, but CARB/EPA

approval does not signify that the engine is safe to use

indoors.

 CGA

The Canadian Gas Association (CGA) has set a limit of

1500 ppm CO in exhaust flow.

 OSHA

For propane powered machines used indoors, the

Occupational Health and Safety Administration (OSHA) has

established a limit of 50 ppm CO for 8‐hour time weighted

average (TWA) in ambient air and is considering a limit of

800 ppm CO in exhaust flow.

 DOT

The Department of Transportation (DOT) has established

regulations regarding the safety of fuel cylinders including

the ones used on propane powered floor care machines.

 Local Agencies

Local law enforcement agencies such as the local Fire

Marshall also rely on independent testing labs such as UL

and CGA before giving their approval of the use of some

equipment. These labs thoroughly test equipment and

submit their stamp of approval only after rigorous testing.

While not being required by all law enforcement agencies,

the stamp of approval by these agencies further assures the

operator that he or she is working with and around safe

equipment.

NOTE: In order to reduce all consequences of the above‐

mentioned risks, we advise that machine operators will

follow the instructions in the manual at all times.

RESIDUAL RISKS

 During the normal operating and maintenance

cycles, the operator is exposed to few residual risks,

which cannot be eliminated due to the nature of the

operations.

BEFORE YOU BEGIN

 Clear working area of any debris or objects.

 A first‐time operator must always read the manual

and pay attention to all safety

instructions.

 All propane connections and cables must be

inspected for potential damages.

 Perform general daily inspections of the machine and

inspect the machine before each use.

 Always inspect the safety devices:

 The tool protector must be working

 Mount the security disc when working with

Quickchange Pads.

 The machine must be clean

 Never operate the machine in the rain!

 Confirm that there are no missing parts

especially after transportation, repair or

maintenance.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

 Before filling the water tank with water, make sure

the machine is not running and the main switch is

turned off.

 Before turning on the machine, make sure that the base

placed on the floor, the machine MUST NOT be in a

tilted position when starting

OPERATING MACHINE

 When operating the Lavina® 20GEB, make

certain that there is no one, but you around the

machine.

 Never leave the machine unattended while working.

 The water hose must move freely and must be damage‐

free.

 Make sure the working surface is not too uneven. If

it is, it may damage the machine.

AFTER WORK IS COMPLETED

Clean the machine and its

surroundings properly

 Empty and clean the water tank

 Store the machine in a safe place

 Place the Propane bottle outside in designated storage

The Work Area

 Prevent people or vehicles from entering the work

area.

 Clear all hoses and cables from the work area.

 Always check the floor for debris

PERSONAL PROTECTIVE EQUIPMENT

(PPE)

 Always wear safety shoes when working with the

machine.

 Always wear ear protectors when working

with the machine.

 All personnel in the immediate work area must wear

safety glasses with side shields.

 Always wear safety gloves when changing the tools.

 Always wear clothes suitable for the work environment.

 Always wear Carbon Monoxide Indicator

badges as an extra precaution.

 The plastic indicator contains a colored indicator button

that darkens in the presence of Carbon Monoxide. The

relative darkness of the indicator button indicates the

level of CO in the ambient atmosphere. Most indicator

badges have a useful life of 30 days, depending on the

concentration of contaminants, humidity, and

temperature.

TESTING

 There are a great number of instruments offered on the

market to test for toxic gases. Only those designed to

read carbon monoxide resulting from combustion

engines are considered acceptable for testing exhaust

emissions from propane powered floor machines.

 Some instruments are used to read “ambient air” and

may

be damaged if used to take readings in the muffler or

tail pipe. Selecting the proper instrument is an

important part of meeting the testing requirements.

 Generally speaking, units capable of reading in ppm,

(parts per million), at ranges from 0 to 1000 are

adequate for checking ambient air (air in the breathing

zone of the operator). Instruments capable of testing

carbon

monoxide in the exhaust should be able to read from 0

at least 2000 ppm and should be certified by

the manufacturer for that purpose.

 Some instruments and systems used for these

purposes are:

1) AMBIENT AIR MONITORING

DRAGER Model 190: Manufactured by National

Drager.

SENSIDYNE gas sampling system with YB‐11038

Sensidyne dectector tubes

DRAGER gas sampling system with YB‐4620

Drager detective tubes

GAS‐TECH Model CO‐95

ENERAC POCKET 60: Manufactured by Energy

Efficiency System

2) ENGINE EXHUAST

ANALYZERS HORIBA

GAS ANALYZER

ENERAC 2000 COMBUSTION

ANALYZER ENERAC POCKET 60

3) DATA LOGGERS

INDUSTRIAL SCIENTIFIC CORP. MODEL STX‐70

CO MONITOR, Data‐Logger

BIOSYSTEMS INC. “TEXILOG” Data‐Logger

 All instruments used for testing must be calibrated

at intervals recommended by the manufacturer. The

monitor, model number and date of calibration will

be recorded with all test results.

OPERATOR

 The operator must know the machine’s

work environment.

 Only one operator can work with the machine at a time.

 The operator must be properly trained and well

instructed prior operating the machine.

 The operator must understand all the instructions in

this manual.

 The operator must understand and be able to

interpret all the drawings and designs in manual.

 The operator must know all sanitation and

safety regulations pertaining to the operation

 The operator must have floor grinding experience.

 The operator must know what to do in case of

emergency.

 The operator must have adequate technical

knowledge and preparation.

 The operator is expected to operate their equipment

safely

 and responsibly. They are responsible for the

proper handling and storage of propane cylinders,

identifying potential hazards associated with his

job and avoiding these hazards at all times.

PROPANE CYLINDERS

 The Propane cylinders are constructed of either

aluminum or steel. We recommend aluminum

because it is lighter and guards against rusting. The

cylinder used on propane powered floor machines is

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

classified as a 4E240 cylinder. Its rated capacity is 20

lbs. and this designation refers to the model of the

cylinder. Actual propane capacity

achieved during filling can be less than, equal to, or

slightly more than 20 lbs. Use only UL, CTC/DOT listed

cylinders.

 The propane cylinder used on the floor machine is a

motor fuel cylinder as listed by the Department of

Transportation. Unlike the common 20‐lb propane

outdoor grill cylinders (which are not legal for use on

propane floor machines),

the motor fuel cylinder has a number of safety systems

designed into it to ensure your safety at all times.

 There are two types of 20 lb. motor fuel cylinders.

Liquid draw

Vapor draw

 The liquid draw cylinder is used on larger vehicles like

forklifts. These machines have special vaporizing

carburetors to allow the propane to change from a

liquid to a gas before being burned in the combustion

chamber.

 The vapor draw cylinder is used on small machines like

the propane powered floor care machines. The

vacuum generated by the engine draws up the

Propane gas vapor through the fuel system. The

propane powered floor care machine does not have an

evaporating system and will freeze up if liquid propane

is introduced to it. It is necessary that special attention

be paid to ensure that neither the liquid nor the vapor

draw cylinders be overfilled.

REFUELLING CYLINDERS

 The proper filling of propane cylinders is a subject so

important that it warrants special attention. Propane

cylinders should only be filled by qualified propane

dealers.

 Most important, propane cylinders should be filled no

more than 80% of their rated capacity. The other 20%,

which is about 4” (10 cm) from the top of the cylinder,

is called the vapor space or headspace. This vapor can

be compressed without causing the pressure relief

valve to open and vent gas to the area around the

cylinder. If there is no headspace to allow for fuel

expansion, the pressure relief valve will open, releasing

propane gas into the atmosphere. This is a very

dangerous and volatile situation as there is always the

possibility that enough of the vented gas could find its

way down to the floor and come in contact with a pilot

light from a furnace, hot water heater, or other source

of ignition.

Propane changes into a gas, is ‐44oF (‐42o C). Exposing

unprotected skin to propane gas or liquid could result

in frostbite injury.

 All new cylinders should be vented and purged of air

per manufacturer’s instructions before use. Never bleed

propane cylinders indoors.

STORAGE CYLINDERS

 When not in use, propane cylinders always should be

stored outside in an upright position in a secure,

tamperproof, steel mesh storage cabinet. This cabinet

may be located next to the building but with at least

five

feet (1.5 m) of space between the cabinet and the

nearest

building opening (door or window), also away from

heat and direct sunlight.

 Do not install the cabinet near a stairway or street

elevator as vented propane gas will seek a lower level

since it is heavier than air and could find its way into

the basement of the building. Do not store cylinders full

or empty inside a building or inside a vehicle. Although

it is unlikely that propane will vent from a stored

cylinder, if it should, the vapor could come in contact

with an ignition source such as a spark from a power

tool or other appliance and create a flash fire.

 Do not smoke or use a device with an open flame

when handling or transporting propane cylinders.

TRANSPORTING CYLINDERS

 When transporting cylinders to a propane dealer or

to a job, make sure the cylinders are securely

fastened and standing in an upright position with

the service valve closed.

 A cylinder rattling around in the back of a vehicle and

banging into other objects constitutes a hazard. Avoid

dropping or banging cylinders against sharp objects.

 The propane cylinders are sturdily constructed

but a series of hard jolts could cause damage.

 Please note that any cylinder that has been filled is

always

considered full, no matter how little propane gas

remains in it. This is because even when all liquid

has evaporated into vapor there is still some

propane gas vapor left in the cylinder. Because

this remaining fuel is flammable, an empty

cylinder should be treated with the same careful

procedures as one that is filled to the 80% level

with liquid propane. The only time that a cylinder

is considered empty is when it is new, before it

has been filled with propane.

 When transporting a propane powered floor

machine, the propane cylinder may be strapped

onto the machine as long as the machine itself is

firmly secured in the vehicle.

 Of course, spare cylinders should always be

secured in an upright posi

Superabrasive User Manual Original Language Lavina® 20GЕB 4/2022

3. HANDLING AND TRANSPORTATION

ADJUSTING THE HANDLE

The Handle on the frame is adjustable in height and allows the operator to work in a

correct and safe posture (fig. 3.1). To adjust the handle first you should release the pin

(fig. 3.3) then lift the locking plate (fig. 3.4) and then you can rotate and adjust the

handles. Choose the upright position to move easy the machine.

The machine has two built in weights. Each one could stay in upward Fig.3.5 or

downward position fig.3.6. You can lock and secure the weight in each of the two

positions by removing the pin and releasing the locking plate for the weights.

/Fig.3.7;Fig.3.8/.

Figure 3.5

Figure 3.6

Figure 3.7

Figure 3.8

Figure 3.1

Figure 3.2

Figure 3.3

Figure 3.4

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

LIFTING THE MACHINE FROM WORKING TO TOOL MOUNTING POSITION

Lock the weights in upward position. Put the handles of

the carriage as shown on (fig. 3.9). Ensure that the

water tank is empty before flipping the machine. Push

the handles and flip in position shown on fig. 3.9. If

necessary, help by placing your foot on the heel near the

gas bottle. Always keep both rear wheels locked

(Fig. 3.10). Unlock the wheels (Fig. 3.11) only

when you wish to move the machine

LIFTING

Lifting the machine by crane is possible by using the handles of the carriage (fig. 3.9). The design is rated only for the

weight of the machine. Do not lift any other loads on the machine. Always use hoisting equipment rated for 300 kg (660 lbs)

or greater.

STORAGE

Always store the LAVINA® GEB machine in a dry place. Never transport the

LAVINA® GEB machine unprotected; it may be damaged if transported unprotected exposed to rain or snow.

When the machine is in storage and the temperature may fall down to or below 32F (or 0o C) you

should empty the water from the system:

- Leave open internal and external valves to drain water

Figure 3.9

Figure 3.10

Figure 3.11

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

4. OPERATION

PRELIMINARY CONTROLS

Inspect the working area as explained in the safety instructions. Fill in the water tank for wet use or connect the vacuum

extractor and ensure that the vacuum hose is clear and it will follow the machine easily.

Make sure the bonnet air filter on top of the engine is clean. It should be cleaned hourly.

Check the engine oil level, screw the dipstick in to get reading. Make sure the tank is full (see also “Storage Propane tanks).

TANK and FUEL LINES - Check the tank and fuel lines for any sign of wear and tear, such as cracks or any corrosion. Screw the

brass fuel line fitting onto the tank service-valve (hand tight only). This connection MUST be secure because the service valve

has a safety valve inside it, which will only open if the brass fuel-line fitting is COMPLETELY seated into the service valve.

SA LPG CONTROLLER USER MANUAL

The SA LPG Controller is a high-performance, digital fuel control system featuring closed loop feedback,

fuel lock-off capability, emissions safety warnings with shutdown, and an LCD screen for user interface.

The system is highly responsive to changes in engine load, providing optimum the air-to-fuel ratio

regardless of operating conditions.

SYSTEM COMPONENTS

The following parts are included with the system

 Electronics Module

 Integrated Wire Harness

 Fuel Control Valve

 Fuel Control Housing

 O2 Sensor

 LPG Regulator with lock-off

*Individual items are available as replacement parts if necessary*

OVERVIEW OF FEATURES

Closed Loop Fuel Management System

The SA LPG Controller uses closed-loop feedback from the O2 sensor to control the amount of fuel introduced to

the engine via the Fuel Control Valve. This technology continuously monitors engine emissions and is capable of

making fuel corrections to compensate for varying engine loads and conditions.

BUILT-IN FUEL LOCKOFF CONTROLLER

The SA LPG Controller also controls the fuel lock off and only allows fuel to pass through if it detects the engine is

cranking. Once the SA LPG Controller is powered off from the equipment key switch, the SA LPG Controller closes

the fuel lock-off and shuts the engine down immediately.

EMISSIONS WARNINGS AND SHUTDOWN

If the SA LPG Controller detects engine emissions that are too lean or rich for a period of 5 minutes, it will shut the

engine down via the fuel lock off. The Red LED will blink and the LCD will display a message alerting the user of the

issue and will prompt some common fix suggestions.

BATTERY VOLTMETER

This feature allows for real-time display of the battery’s voltage, which also helps for troubleshooting any battery

or charging system issues that may arise.

ENGINE TACHOMETER

Displays the current engine speed (in RPM). This should be used to assess proper idle, WOT and engine speed for

the appropriate tooling.

JOB TIMER

The job timer feature works when the engine is running, and will stop running when the engine is stopped. The job

timer allows for easy timing of jobs or work areas to help determine speed. Resetting the job timer is password

protected.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

SERVICE ALERTS

The SA LPG Controller also provides equipment-specific service alerts for the following items:

 Air Filter

 Oil Change + Filter

 Spark Plugs

 Seal Replacements

 Chain Inspections

 Belt Inspections

 Tooling Inspections

Each item has individual alerts at different hour intervals, and the SA LPG Controller will start alerting the user when

the hour interval is over. To reset a particular service alert, simply press the Enter button. The interval starts to blink.

Then press and hold the “+”and the Enter buttons for a couple of seconds. The interval should be reset.

MAIN MENU NAVIGATION AND USE

This section outlines how to navigate the menu and interact with certain features.

MAIN MENU

The Main Menu contains the following screens, which can be viewed by simply using the + and - buttons to scroll.

Please note: Upon startup, the first screen shown is always Operational Information (battery’s voltage and

tachometer).

- Operational Information (Default screen)

- Alarm Status

- Engine Hours

- Job Timer

- Service menu

- Diagnostic menu

- Machine number

- About

Operational Information - This is the default screen. It displays the battery’s voltage and tachometer - current

engine speed in rpm.

Alarm status – Alarm message indicates when a service interval is over. Then you should take particular action to

reset the alarm.

Engine Hours – Displays the total number of hours – idle mode and clutch engaged.

Job Timer - The job timer feature works when the engine is running, and will stop running when the engine is

stopped. This allows you to accurately time how long your engine runs for a particular job. Resetting the timer is

password protected.

Service menu – When you enter this menu, you have access to the service intervals of the machine. You can check

the time left before the service interval is over.

Diagnostic menu - When you enter this menu, you have access to the O2 sensor and step motor diagnostics.

Machine number – The machine serial number is entered here from the manufacturer.

About – This screen displays the manufacturer name. Hardware and software version too.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

LED ALERTS & RESETTING SERVICE INTERVALS

The SA LPG Controller will alert you when service is due. To reset the service interval see text above – Service Alerts.

SAFETY INFORMATION

Safety Information - Read all safety information before using this device to ensure safe and proper use.

Do not interact with the device while operating your equipment. Doing so may distract your attention and cause an

accident, or may be illegal depending on your region.

Avoid any direct contact with pressure washers, water sprayers or cleaning chemicals of any kind.

Do not drop or cause an impact to the device.

Do not bend or twist the device and/or the wire harness excessively.

Do not disassemble, modify or repair your device. This product contains no user serviceable parts.

FCC Part 15.21

Any changes or modifications to this device that are not expressly approved by the manufacturer may void the user’s

authority to operate the device.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

WATER FLOW CONTROL SYSTEM

The water system is designed to supply water directly on the tools. The

water supply is coming either from the tank or from external water

source:

- water supply from the tank:

Put the internal water valve into position „ON” (along the axis of the

machine) Figure 4.2 and close the external valve Figure 4.3, so the water

could flow from the tank through the internal valve over the tools.You

can adjust the water flow by putting the internal valve in an

intermediate position.

- external water supply:

Put the internal water valve into position „OFF” Figure 4.1 and open

the external valve Figure 4.4, so the water could flow through the

external valve over the tools.

You can adjust the water flow by putting the external valve

in an intermediate position.

ALWAYS USE CLEAN WATER TO PROTECT THE SYSTEM FROM DIRT.

Figure 4.1

Figure 4.2

Figure 4.3

Figure 4.4

Figure 4.5

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

ADJUSTING AND MOUNTING TOOLS

Lavina® 20GEB uses tool holder A63. With this new holder every one of our tools uses the “Quickchange” connection. To

change the tools you need first to unlock the butterfly (fig 4.6 in blue) by using the key we provide you (you can see it in the

pictures fig. 4.7) remove the security plate (fig 4.6 in red) then load the tools you want and insert the security plate again so

the tools cannot go backwards, rotate and lock the butterfly (as shown in fig.4.7). As you can see in fig. 4.6, for some of the

new tools you need to remove the security plate as they don’t need locking system at all but for the others always make sure

that the tools are securely locked.

In Lavina 20GEB the holder is initially mounted with 3 buffers.

Mount the tools only after ensuring that there is enough diamond bond material left. Be sure that the plates are always

clean before mounting.

WARNING: Always secure the Quick Change tools with the butterfly (Fig.4.6 in blue), lock with the tool holder key

(Fig.4.7) and make sure that the butterfly is securely locked and it holds the security plate not to fall off.

VACUUM CONNECTION

To connect a vacuum cleaner, the Lavina 20GEB is supplied with vacuum hose Cam Lock inlet C250 / vacuum hose diam. 2,5

in (63mm) (Fig.4.8-1). You can also dismount the Cam Lock adaptor (Fig.4.8-2) and connect a hose with outside diam. 2in

(Fig.4.9).

USE HORIZONTAL PROPANE TANK

The standard Lavina 20GEB is equipped with vertical propane tank with vapor draw. If necessary the machine can work

with horizontal tank but obligatory with vapor draw. Here is how to readjust the machine for horizontal propane tank:

 Dismount the support that carries the strap holding the tank. Dismount the strap from the support. Dismount the rear

support of the tank. Remove half of the rubber insulator of the support. Place the strap in the middle of the tank support

and place again the half of the rubber insulator. This support together with the strap should be mounted on the upper

level.

 Dismount the front tank support and mount it on the upper level.

 Dismount the right support that has the tensioning key of the tank strap.

 Mount the key on the carriage using the plate underneath and the available screws and nuts. Adjust the locking depending

on the diameter of the propane tank.

 While working do not forget that you should use properly fitted tank with vapor draw, to avoid freeze regulator problems.

Figure 4.7

Figure 4.6

Figure 4.8

Figure 4.9

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

CONTROL BOARD

THE CONTROL BOARD

1 Throttle Push forward to accelerate.

2 Start/Stop clutch Start will electronically activate the grinding plates to spin; stop will disconnect engine from grinding

heads

3 USB charger

4 Lights switch

5 Start/Stop Engine switch Turn key fully to the right (make contact) to ignite the engine. Fully to the left will arrest the

engine.

6 Electronics Module of digital fuel control system When running, it indicates the revolutions per minute of the motor.

When not running, it indicates the battery voltage, worked hours and some diagnostics data. The electronics module will blink

as a reminder for taking action when any of the service intervals is over. Check the conversion table to know the rpm of the

tools.

7 Emergency button used to stop the motor in case of emergency

8 Panel cover Under the cover is the 30 Amp fuse for the electrical system and the contacts separating the electrical system

between carriage and the main head.

9 Phone holder

10 Cover with cup holder

rpm engine

rpm tools

2000

610

2100

640

2200

670

2300

710

2400

740

2500

770

2600

800

2700

830

2800

860

2900

890

3000

920

3100

950

3200

980

3300

1010

3400

1040

3500

1070

3600

1090

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

ELECTRONICS MODULE OF DIGITAL FUEL CONTROL SYSTEM

The block diagram only shows the flow using the "Plus" key on the keyboard. The "Minus" key reverses the direction of the flow.

If there is “L” in the corresponding button, then you have to hold it for a couple of seconds.

Superabrasive User Manual Original Language Lavina® 20GEB 4/2022

STARTING THE MACHINE

First, follow the directions in the chapter on Safety Devices and Safety Instructions. Check oil level. Open the service valve

on the propane tank about one and a half (counterclockwise) turns. Next, make sure the Start/Stop Clutch rocker (2) is in

stop position and check that the throttle (1) in the IDLE position. This creates the necessary vacuum to open the lock‐off

valve inside the regulator. Actuation of the throttle lever will keep the lock‐off valve from opening and the engine from

getting fuel so the engine will not start. Proper maintenance will insure easy starting. Engage starter (4) for a MAXIMUM of

5 to 6 seconds or until the engine fires. Serious starter damage will result if this is exceeded and the warranty may not

apply. Operate the engine at half throttle for approximately two minutes to properly warm engine. Then advance to full

throttle for best results. If working wet, add water to the floor surface. If working dry, instead switch on the vacuum unit.

Finally, hold the machine firmly and push the start of the Start/Stop clutch button (2).

OPERATING THE MACHINE

Guide the machine in straight lines across the floor, slightly overlapping the previously completed surface with each new line.

Work at a constant speed, allowing the tools time to work at a speed appropriate for the tools’ grit size. Avoid vibrations. Do

not stop the machine while tools are still running as they will mark the surface of the floor. When working wet, select the

destination of the water feed with the water tap (fig. 4.2) When working dry, check the floor surface periodically for dust

accumulation. Check regularly to see if you’re vacuum works properly.

STOPPING THE MACHINE

Stopping of the machine must be done gradually.

To begin, disengage the clutch by pushing the Stop clutch rocker (2), and return the throttle (1) to the IDLE

position. Wait 5-10 seconds. Turn the Start/Stop Engine switch (4) fully to the left in order to arrest the engine. Close

(clockwise) the service valve on the propane tank.

• In case of an emergency ONLY press the “Emergency Stop Button" (6).

When you are finished with the machine, store the propane tank outside the building, in a SECURE place away from

heat or direct sunlight.

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Superabrasive L20GEB Owner's manual

Brand: Superabrasive

Model: L20GEB

Type: Owner's manual

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Superabrasive L20GEB Owner's manual

Superabrasive L20GEB Owner's manual

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